Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon showing my new design; and,

FIG. 2 is a front view of a display screen or portion thereof with icon of FIG. 1, in which a mobile terminal in broken lines is provided to illustrate an example environment.

The broken line drawing of the mobile terminal, and the symbols and otherwise images shown in broken lines in FIG. 2 are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 